title: Modified ion-source cage for a clinical mass spectrometer.
mesh_terms: D000776:Anesthesiology / Q000295:instrumentation; D002245:Carbon Dioxide / Q000032:analysis*; D004867:Equipment Design; D006221:Halothane; D006801:Humans; D013058:Mass Spectrometry / Q000295:instrumentation*
chemical_list: D002245:Carbon Dioxide; D006221:Halothane